Door.



O. NIEMANN.

DOOR.

APPLICATION FILED NOV. 13, 1912.

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DOOR.

APPLICATION FILED NOV. 13, 1912.

1,097,558. Patented May 19, 1914.

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COLUMBIA PLANOGRAPH COQWASHINUTON, D32.

O. NIEMANN.

DOOR.

APPLICATION FILED NOV. 13, 1912.

Patented May 19, 1914.

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DOOR.

Specification of Letters Patent.

Application filed November 18, 1912.

Patented May 19, 1914.,

Serial No. 731,136.

To all whom it may concern Be it known that I, O'rro N].E1\IANN,Lcitizen of the United States, residing at San lifarcos, in the county ofHays and State of Texas, have invented new and useful Improvements inDoors, of which the following is a specification.

The invention relates to doors and has for an object to provide a doorthat can be socured in either open or closed position either from theexterior or interior of the building on which the door is mounted.

The invention relates more particularly to doors for use on automobilegarages and the like, and in which it is desired to operate the dooreither to open or close the same from either the interior or exterior ofthe building by means of suitable cords conveniently arranged so thatthe operator need not remove himself from the vehicle or antomobile inorder to swing the doors into the desired position.

In the further disclosure of the invention reference is to be had to theaccompanying drawings, constituting a part of this specification, inwhich similar characters of reference denote corresponding parts in allthe views, and in which:

Figure 1 is a perspective view looking at the front of a building,showing the door sections in open and locked position; Fig. 2 is a planview, parts being broken away to disclose the underlying structure; Fig.3 is a vertical sectional view taken on the line 3-3 in Fig. 2, the doorsections being shown in closed and locked position; and Fig. 1 is a rearelevation of the door, the door sections being shown in closed position.

Referring more particularly to the views, 1 disclose a building 10having a front side 11 forming a door casing 12, a plurality of doorsections 13 and 14 being mounted to swing on the casing 12 to close anentrance 15 to the building 10. Located a distance from the door casing12 on the outer sides thereof is a pedestal 16 which has secured to andsupported thereupon the upright 18, this uprigl'itis connected to oneside of the door casing 12 by the horizontal cross piece 17. The doorsections 13 and 14: are adapted to swing simultaneously by means of arod 19 having rigid connection with the door section 13 and havingpivotal connection at its free end with a second rod 20, the said secondrod having pivotal connection with r the door section 14; It will now beseen that when one door section, as, for instance, the door section 13,is swung into either open or closed position, the other door section 1 1will swing simultaneously with the door section 13 and will at all timesassume a position similar to the doc-r section 13, being simultaneouslyoperable therewith, as mentioned heretofore.

A locking bar 21 is arranged in a chamber 22 in the door section 13 andis slidablc therein, with an end of the locking bar normally arranged toproject beyond an edge of the door section 18 by an expansiblo spring 23placed within the chamber 22 and abutting against the rear end of thelocking bar as shown, the outward movement of the locking bar beinglimited by a pin 24 passing entirely through the locking bar 21, withthe ends thereof projecting and operable in slots 25, it being readilyunderstood that when the pin 24 reaches the forward ends of the slots 25the locking bar 21 will be in its outermost position.

A. spring actuated dog 26 is mounted to swing on the door casing 12 atsubstantially the medial portion thereof and is provided with aninclined edge 27 over which the locking bar 21 is adapted to ride whenthe door sections 13 and 14 are swung into closed position, the dog 26being then swung against the action of the spring 26 engaging the same,after which the dog 26, actuated by the spring engaging the same, willsecure the locking bar 21 in a notch 28 in the dog, thus retaining thedoor sections 13 and 14 in closed and locked position. A second dog 29,similar to the dog 26, is mounted on the cross piece 17 and is pref-.erably weighted to secure the door section 13 when the locking bar 21engages the dog, as mentioned heretofore, and is also adapted to engageand secure the locking bar 21 in order to retain the door sections 13and 1-1 in open and locked position, as shown in Fig. 1.

A lever 30 is mounted to swing at its medial portion on the door section13 and is preferably arranged to swing in a notch in the door section soas not to interfere with the proper closing or opening of the doorsection and a cord 31 is connected to the pin or secured to the lockingbar 21, and to one end of the lever 30, a second cord 32 being connectedto the same end of the lever 30 and having connection with the lower endof a lever 83, similar to the lever 80 mounted to swing on the doorcasing 12, within the building 10, a cord 34 being connected to the sameend of the lever 33 and passing over a suitable roller 35 journaled on abracket 36 secured within the building 10, the free end of the cordterminating in a handle 3'? depending adjacent one of the walls of thebuilding and within the same. Assuming that the door sections 13 and 14are in open and locked position as shown in Fig. 1, when the handle 37is grasped and a pull exerted thereon, the lever 30 will be actuated toimpart a pull to the cord 31, thus actuating the locking bar 21 againstthe expansible action of the spring 33 and moving the projecting end ofthe locking bar within the chamber 22, thus disengaging the locking bar21 from the dog 27 so that a continued pull on the handle 37 will resultin the door section 13 and likewise the door section 14 swinginginwardly toward the door casing 12 and moving into closed positionrelatively to the casing to close the entrance 15 to the building 10, itbeing further seen that when the door sections 13 and 14 have been swunginto closed position as mentioned and the pull 011 the cord 37 isreleased, the locking bar 21 will again spring into normal position andproject from an edge of the door section 13, thus engaging the dog 26and locking the door sections 13 and 14 in closed position. A cord 38 isconnected to the other end of the lever 30 and after passing over aroller 39 j ournaled on a bracket 40 secured to the door casing 12exteriorly of the building 10, the cord passes through an opening 41 inthe door casing and passes over a roller 42 journaled on the bracket 36,the said cord being then arranged to depend and provided with a suitablehandle 43 adapted to normally depend adjacent the handle 37 and withinthe building 10. A cord 44 is also connected to the other end of thelever 30 and has connection with the outer end of the pin 24 so thatwhen it is desired to move the door sections 13 and 14 into open andlocked position, first releasing the same from closed and lockedposition, and from within the building 10, the handle 43 is grasped anda pull exerted thereon, thus moving the locking bar 21 within thechamber 22 and disengaging the locking bar from the dog 26, after whicha continued pull on the mentioned handle 43 will result in an outwardswinging movement of the door sections 13 and 14 and at the moment thepull on the handle 43 is released the locking bar 21 actuated by thespring 23 will return to normal position and extend outwardly from anedge of the door section 13 to engage the dog 29 and lock the doorsections 13 and 14 in open position.

The door sections 13 and 14 are in open position and in order to permitof easily closing the same from the exterior of the building 10, a cord45 is connected to the upper end of the lever 33 and passing through anopening 46 in the door casing 12, passes over a roller 47 journaled on abracket 48 secured to the upright 18, the said cord 45 being providedwith a suitable handle 49 depending adjacent the upright 16, as shown.Now when a pull is exerted on the handle 49, the upper end of the lever33 will be swung forwardly, thus exerting a pull on the cord 32 havingconnection with the lever 30 and the inner end of the lever will thus beswung rearwardly to exert a pull on the cord 31 and move the lockin bar21 against the action of the spring and within the chamber 22, thusdisengaging the locking bar 21 from the dog 29, after which a continuedpull on the handle 45 will cause the door sections 13 and 14 to swinginto closed position, the pull on the handle 49 being then released inorder to permit the locking bar 21 to return to normal position andengage the dog 26 and lock the door sections 13 and 14 in closedposition. Now in order to move the door sections 13 and 14 into openposition from the exterior of the building 10, use is made of a cord 50having connection with the outer end of the lever 30 and passing over aroller 51 journaled on the bracket 40, the said cord 50 being thenextended forwardly to pass over a roller 52 j o-urnaled on a bracket 53secured to the upright 18, the cord 50 being provided with a handle 54adapted to normally depend adj acent the handle 43. Now when a pull isexerted on the handle 54, the lever 30 will again be actuated to exert apull on the cord 44, thus moving the locking bar 21 against the actionof the spring 23 and into the chamber 22 todisengage the locking bar 21from the dog 29, after which a continued pull onthe handle 54 willresult in an outward swinging movement of the door sections 13 and 14and when the pull on the handle is then released the locking bar 21 willreturn to normal position and project from an edge of the door section13 to engage the dog 29 and lock the door sections 13 and 14 in openposit-ion.

From the foregoing description it will thus be seen that the doorsections 13 and 14 can be simultaneously swung into open or closedposition from the interior of the building and similarly swung into openor closed position from the exterior of the building. It will also beseen that the door sections can be actuated by the operator from theexterior of the building to swing into open position and then againactuated by the operator within the building to swing into closedposition or vice versa.

It will be understood that various changes can be made in theconstruction set forth herein without departing from the spirit of theinvention and that the scope of the invention is defined by the appendedclaim.

Having thus described my invention, I claim:

In combination, a door frame, a door hinged within said frame, standardsdisposed upon each side of said frame at a distance therefrom, said dooradapted to swing open toward one of the standards, a leverintermediately pivoted upon frame and disposed upon the opposite sidethereof with respect to the opening of the door, a bracket supported onthe opposite side of the frame and supporting pulleys, means for lockingsaid door in open and closed positions, a rocker arm upon said door andextending transversely therethrough and connected with said lockingmeans, two sets of pulleys supported on each of said standards, a cordextended from a pulley of each of said standards to the pulleys of saidbracket, and having the extended ends connected with one of the freeends of said rocker arm whereby upon pulling either of said cords saiddoor will be unlocked and swung open, a second cord extended from theother pulley of each of said standards, the one of said last mentionedcords which is extended from the standard disposed on the opening sideof the door connected to the upper end of said lever, the other of saidlast mentioned cords being connected to the lower end of said lever, aconnection between the other end of said rocker arm and the lower end ofsaid lever whereby upon pulling either of the last mentioned cords theunlocking and closing of the door is effected.

In testimony whereof I a'l'iix my signature in presence of twowitnesses.

OTTO NIEMANN. WVitnesses 7M. Gnoos,

L. G. TonLnMMnR.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

